来自Polygonatum kingianum的果实素的结构特征及其对小鼠LOP诱导的便秘的影响
Na Shen1, Xiaodong Zhang1, Yue Zhou1
1School of Chinese Materia Medica, Yunnan Key Laboratory of Southern Medicine Utilization, Yunnan University of Chinese Medicine, Kunming, 650000, China.
Carbohydrate polymers
|November 22, 2025
概括
来自Polygonatum kingianum的三种果实素 (PKF) 通过改善肠道通道和屏障功能来有效治疗便秘. 这些化合物显示出作为天然疗法的希望,与乳糖相比,但剂量较低.
科学领域:
- 自然产品化学 自然产品化学
- 药理学 药理学是指药理学的学科.
- 胃肠病学 胃肠病学
背景情况:
- 波利格纳 (Polygonatum kingianum) 具有具有健康益处的多糖类.
- 传统中国医学使用P. kingianum用于各种治疗目的.
- 果糖是一种碳水化合物,具有潜在的益生菌和促进健康的特性.
研究的目的:
- 从P. kingianum中分离和表征中性果实素.
- 为了评估这些果糖在缓解便秘方面的有效性.
- 为了阐明作用的潜在机制.
主要方法:
- 从P. kingianum.中净化和分析果实素 (PKF-2,PKF-3,PKF-4) 的结构.
- 在洛佩拉胺诱导的小鼠模型中评估抗便秘作用.
- 对血清调节因子,肠道屏障完整性和关键信号通路 (如SCF/c-Kit,AQP/ENaC-γ) 的分析.
主要成果:
- 分离了三种中性果糖 (PKF-2,PKF-3,PKF-4) 具有不同程度的聚合 (DP 25,14,9).
- 服用PKF显著改善了便产量和胃肠道过渡率.
- PKF使血清MTL和GAS水平正常化,保护了肠道屏障的完整性,并调节了运动性和液体平衡途径.
- 在显著较低的剂量下,PKF表现出与乳糖相当或优于乳糖的疗效.
结论:
- 来自P. kingianum的低分子量果具有显著的抗便秘特性.
- 这些果实素通过增强肠道运动,调节液体平衡和保持肠道屏障功能来起作用.
- 这些发现支持P. kingianum衍生的果实素作为治疗便秘的新药的治疗潜力.
相关概念视频
Drugs Affecting GI Tract Motility: Other Laxatives
995
Laxatives are primarily used to alleviate constipation, a common gastrointestinal disorder characterized by infrequent bowel movements and difficulty passing stools. They work by various mechanisms to increase the volume or frequency of bowel movements. The primary modes of action of laxatives include increasing stool bulk, softening the stool, stimulating intestinal motility, and osmotically drawing water into the intestines.
Osmotic or saline laxatives, like magnesium hydroxide or milk of...
Osmotic or saline laxatives, like magnesium hydroxide or milk of...
995
Drugs Affecting GI Tract Motility: Bulk-Forming and Stimulant Laxatives
512
Laxatives enhance bowel movements and alleviate constipation. They augment the stool's bulk, stimulate intestinal muscle contractions, draw water into the intestines, or soften the stool. There are five key types of laxatives: bulk laxatives, stimulant laxatives, osmotic laxatives, stool softeners, and lubricant laxatives.
Bulk-forming laxatives, such as psyllium, methylcellulose, and polycarbophil, absorb water in the intestine, increasing stool bulk and promoting bowel movement. This...
Bulk-forming laxatives, such as psyllium, methylcellulose, and polycarbophil, absorb water in the intestine, increasing stool bulk and promoting bowel movement. This...
512
Drugs for Treatment of Constipation-Predominant IBS
682
Pharmacological therapies for IBS-C are designed to alleviate abdominal discomfort and enhance bowel function. In patients with IBS-C, fiber supplements may help soften stools and decrease straining, but may also lead to increased gas production and bloating. Osmotic laxatives like milk of magnesia are frequently used to soften stools and increase stool frequency in IBS-C patients. In addition, two drugs approved for use in severe IBS-C adult cases are linaclotide (Linzess) and lubiprostone...
682
Drugs Affecting GI Tract Motility: Opioids as Antidiarrheal Agents
600
Diarrhea, a condition marked by frequent loose or watery bowel movements, can be triggered by multiple factors such as viral or bacterial infections, food intolerances, anxiety, medications, and digestive disorders. Symptoms may include abdominal pain, bloating, nausea, and cramping. Severe or prolonged diarrhea can lead to complications like electrolyte imbalances, malnutrition, and dehydration if left untreated.
Opioids, widely used antidiarrheal agents, mitigate diarrhea by slowing down...
Opioids, widely used antidiarrheal agents, mitigate diarrhea by slowing down...
600


